square
A line of symmetry
Symmetry is dividing a shape or figure in a certain way so that both sides are the same. Usually the line of symmetry, the line separating the shape, is a straight line.
square and Equilateral Trangle
An image has Reflectional Symmetry if there is at least one line which splits the image in half so that one side is the mirror image of the other. Reflectional symmetry is also called line symmetry or mirror symmetry because there is a line in the figure where a mirror could be placed, and the figure would look the same.
all equilateral shapes do. that means that all sides are the same length.
A square.
A line of symmetry
Symmetry is dividing a shape or figure in a certain way so that both sides are the same. Usually the line of symmetry, the line separating the shape, is a straight line.
square and Equilateral Trangle
An image has Reflectional Symmetry if there is at least one line which splits the image in half so that one side is the mirror image of the other. Reflectional symmetry is also called line symmetry or mirror symmetry because there is a line in the figure where a mirror could be placed, and the figure would look the same.
roughly
No. You can reflect any shape about a line but if the resulting image is not the same as the original, that line is not a line of symmetry.
Stand the mirror perpendicular to the figure. When it is positioned on the line of symmetry, the image in the mirror should be the same as the original image. However, this only works with your line of sight being the correct plane.
all equilateral shapes do. that means that all sides are the same length.
All regular shapes have a line of symmetry. But you can get rid of its line of symmetry by making it irregular (so the angles aren't the same).
a line of symmetry is the middle of a shape that is the same on both sides
The line of symmetry in a shape is found be looking at the sides of the shape. If you see that two sides look the same, try to draw a straight line through them. The line of symmetry acts like the dotted line in which you fold you paper. If you can fold the shape across the line of symmetry, and the shape is exactly the same on both sides then you have found A line of symmetry.